Please, I have a problem that have been limiting me. Please, where can I get a platform where I can code in c#.net, vb.net and f#? Because I usually code them on papers and I cant be sure that I will always get them right. Again, I will also need e.books for the three of them because the material that I am using appears childish and it is also far from being explanatory. If it is a site, please, i will need the site. I remain grateful in advance.